"I pray that the city of Miami Gardens residents can breathe a little bit easier tonight because we got these individuals off the street," said Hugo J. Berrera, with the Miami Bureau of Alcohol, Tobacco, Firearms, and Explosives.

The focus of the operation were violent criminals, gang members and convicted felons.

"The bottom line is what they tried to do is make money at the misery of other people," Fernandez Rundle said.

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All of the 248 guns, including one sawed-off shotgun, that were recovered, will be traced.

U.S. Attorney Wifredo Ferrer said if the weapons were still on the street, he knows what would happen.